/// <summary>
/// Connects the server instance to COM server.
/// </summary>
/// <exception cref="System.InvalidOperationException">Already connected to the OPC DA server.</exception>
public void Connect()
{
if (IsConnected)
{
throw new InvalidOperationException("Already connected to the OPC DA server.");
}
Log.TraceFormat("Connecting to '{0}' opc server", Uri);
var enumerator = new OpcServerEnumeratorAuto();
Tuple <string, Guid> hostAndCLSID = UrlParser.Parse(
Uri,
(host, progId) => new Tuple <string, Guid>(host, enumerator.CLSIDFromProgId(progId, host)),
(host, clsid) => new Tuple <string, Guid>(host, clsid));
ComObject = Com.CreateInstanceWithBlanket(hostAndCLSID.Item2, hostAndCLSID.Item1, null, ComProxyBlanket);
_shutdownConnectionPoint.TryConnect(ComObject);
Log.TraceFormat("Connected to '{0}' opc server.", Uri);
try
{
ClientName = _clientName;
}
catch (Exception ex)
{
Log.Warn("Cannot setup name of client.", ex);
}
OnConnectionStateChanged(true);
}
private void TryConnect(object comServer)
{
if (comServer == null)
{
return;
}
_connectionPoint.TryConnect(comServer);
}
/// <summary>
/// Connect the ParentNode's Port and ChildNode's Port
/// </summary>
/// <param name="parentNode">ParentNode's Port</param>
/// <param name="childNode">ChildNode's Port</param>
/// <param name="decoratorShape">DecoratorShape of the connector</param>
/// <param name="labelText">Set the text to the label</param>
/// <param name="OffsetX">Set the OffsetX to the label</param>
/// <param name="OffsetY">Set the OffsetY to the label</param>
/// <param name="DrawImage">Determines whether image should draw with label or not</param>
/// <param name="classType">Classtype</param>
private ConnectorBase ConnectNodes(ConnectionPoint parentNode, ConnectionPoint childNode, DecoratorShape decoratorShape, string labelText, float OffsetX, float OffsetY, bool DrawImage, int classType)
{
if (parentNode != null && childNode != null)
{
OrthogonalConnector lConnector = new OrthogonalConnector(System.Drawing.PointF.Empty, new System.Drawing.PointF(0, 1));
lConnector.LineRoutingEnabled = true;
lConnector.LineRoutingEnabled = true;
lConnector.HeadDecorator.DecoratorShape = decoratorShape;
lConnector.LineStyle.LineColor = Color.Goldenrod;
lConnector.LineStyle.LineWidth = 1;
lConnector.CentralPort.ConnectionsLimit = 10000;
ImageLabel imageLabel = new ImageLabel(lConnector, labelText);
imageLabel.OffsetX = OffsetX;
imageLabel.OffsetY = OffsetY;
imageLabel.ImageOffsetX = OffsetX - 25;
imageLabel.ImageOffsetY = OffsetY - 5;
imageLabel.DrawImage = DrawImage;
if (classType == 1)
{
imageLabel.TextImage = System.Drawing.Image.FromFile(@"..\..\..\..\..\..\..\Common\Images\Diagram\class diagram\6.png");
}
else
{
imageLabel.TextImage = System.Drawing.Image.FromFile(@"..\..\..\..\..\..\..\Common\Images\Diagram\class diagram\7.png");
}
lConnector.Labels.Add(imageLabel);
lConnector.HeadDecorator.Size = new System.Drawing.SizeF(12, 12);
if (decoratorShape == DecoratorShape.Filled45Arrow)
{
lConnector.HeadDecorator.FillStyle.Color = Color.White;
}
lConnector.HeadDecorator.LineStyle.LineColor = Color.Goldenrod;
lConnector.LineRoutingEnabled = true;
parentNode.TryConnect(lConnector.TailEndPoint);
childNode.TryConnect(lConnector.HeadEndPoint);
this.diagram1.Model.AppendChild(lConnector);
this.diagram1.Model.SendToBack(lConnector);
return(lConnector);
}
else
{
return(null);
}
}
